Power Integrations将反激拓扑功率范围扩展至440W，打造比谐振设计更简洁的电源方案
2026-03-24
电车资讯
<h3>新款TOPSwitchGaN IC将输出功率提升一倍以上，同时降低系统成本、简化系统结构并缩短设计周期</h3>
<p>深耕于高压集成电路高能效功率转换领域的知名公司<a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.powerint.cn%2Fzh-hans%2F%3Futm_source%3Dbusiness-wire%26utm_medium%3Dpr%26utm_campaign%3DPR-03-23-2026-GLOBAL-TOPSwitchGaN-Product-Launch%26utm_content%3Dacdc&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=Power+Integrations&index=1&md5=5d31b76964efc6598bc73a059436cf8f">Power Integrations</a>（纳斯达克股票代号：<a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Finvestors.power.com%2F%3Futm_source%3Dbusiness-wire%26utm_medium%3Dpr%26utm_campaign%3DPR-03-23-2026-GLOBAL-TOPSwitchGaN-Product-Launch%26utm_content%3Dinvestors&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=POWI&index=2&md5=ce10929667b5f244c2d272f88f5fc34f">POWI</a>）今日推出了一项反激拓扑的突破性技术，将反激变换器的功率范围扩展至440W——远超传统上需要更复杂的LLC谐振拓扑结构所能达到的极限。全新的<a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.powerint.cn%2Fzh-hans%2Fproducts%2Ftopswitch%2Ftopswitchgan%3Futm_source%3Dbusiness-wire%26utm_medium%3Dpr%26utm_campaign%3DPR-03-23-2026-GLOBAL-TOPSwitchGaN-Product-Launch%26utm_content%3Dacdc-product&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=TOPSwitchGaN&index=3&md5=d9896340e5149c6942759a3f987e5911">TOPSwitchGaN</a>™反激式IC系列产品将该公司的突破性<a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.powerint.cn%2Fzh-hans%2Fcompany%2Four-innovations%2Fpowigan-technology%3Futm_source%3Dbusiness-wire%26utm_medium%3Dpr%26utm_campaign%3DPR-03-23-2026-GLOBAL-TOPSwitchGaN-Product-Launch%26utm_content%3Dacdc-innovation&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=PowiGaN&index=4&md5=1276436b3828be71e30b158dc4861547">PowiGaN</a>™技术与其标志性的<a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.powerint.cn%2Fzh-hans%2Fproducts%2Ftopswitch%3Futm_source%3Dbusiness-wire%26utm_medium%3Dpr%26utm_campaign%3DPR-03-23-2026-GLOBAL-TOPSwitchGaN-Product-Launch%26utm_content%3Dacdc-product-class&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=TOPSwitch&index=5&md5=91431503f3ea96da61d39d47b5012650">TOPSwitch</a>™IC架构相结合，简化了系统设计，在许多情况下无需使用散热片，缩短了设计周期，提高了可生产性，并降低了系统总成本。</p>
<p>Power Integrations产品营销总监Silvestro Fimiani 表示：“这不仅仅是一次产品升级——这是工程师进行电源设计方式的根本性转变。几十年来，随着功率水平的提高，设计人员不得不转向LLC等谐振拓扑。借助TOPSwitchGaN，我们将反激式拓扑推向了此前无法企及的功率范围，使工程师能够通过简单得多的架构实现高效率和高性能。”</p>
<p>采用TOPSwitchGaN的集成解决方案在10%至100%的负载范围内均能实现92%的效率，且待机和关机模式下的功耗低于50mW，轻松满足欧洲能源相关产品 (ErP) 法规的要求。该器件无需同步整流即可实现这一性能，是高端家电、电动自行车充电器以及工业应用的理想选择。</p>
<p>PowiGaN开关的RDS(ON)远低于硅开关，因此导通损耗降低，显著提升了反激式变换器的功率处理能力。这些新型器件采用800V耐压的 PowiGaN开关，具有出色的抗浪涌能力及低开关损耗，可在高达150kHz的开关频率下工作，最大限度地缩小变压器尺寸。</p>
<p>在230V交流输入电压下（使用输入电压检测的条件下），空载功耗远低于50mW；当设备处于待机模式时，在230V交流输入电压下，输入300mW功率时仍可提供高达210mW的输出功率，作为设备的待机辅助供电。</p>
<p>Fimiani接着说道：“TOPSwitch是首款将离线式功率开关集成到小型封装中的器件，自1994年以来已售出数十亿颗，这一名称代表着电源转换领域的创新。工程师信赖TOPSwitch的高效率和易用性，而如今这些优势将惠及更广泛的设计领域。TOPSwitchGaN将反激式架构的功率范围提升至前所未有的440W，让反激式电路的应用范围拓展至以往需要更复杂拓扑结构的领域。”</p>
<p>新款IC提供两种封装形式。针对超薄设计，扁平的eSOP™-12表面贴装封装可在无需散热器的情况下实现135W（85–265VAC）的输出功率，适用于家电等应用。eSIP™-7封装的立式架构可以最大限度地减少PCB板的占板面积，且其热阻与TO-220封装器件相当。通过使用简单的夹片安装的金属散热片，可实现更宽的功率范围，适用于电动工具、电动自行车和车库门门禁控制等应用。由于TOPSwitchGaN IC与<a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.powerint.cn%2Fzh-hans%2Fproducts%2Ftinyswitch%2Ftinyswitch-5%3Futm_source%3Dbusiness-wire%26utm_medium%3Dpr%26utm_campaign%3DPR-03-23-2026-GLOBAL-TOPSwitchGaN-Product-Launch%26utm_content%3Dacdc-product&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=TinySwitch%26%238482%3B-5&index=6&md5=7a4bc65ac4431d3a97aa1ba0fc82acdf">TinySwitch™-5</a>离线开关电源IC引脚相兼容，设计人员可以对10W到440W功率范围的应用采用相同的解决方案。</p>
<p>供货情况与资源</p>
<p>TOPSwitchGaN的起售价为1.00美元（10,000件起）。提供以下参考设计资料：</p>
<ul>
<li><a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.powerint.cn%2Fzh-hans%2Fder-1079%3Futm_source%3Dbusiness-wire%26utm_medium%3Dpr%26utm_campaign%3DPR-03-23-2026-GLOBAL-TOPSwitchGaN-Product-Launch%26utm_content%3Dacdc-design&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=DER-1079&index=7&md5=6a85a4770eba2b1c74c5e1181ae6cb71">DER-1079</a> – 该方案采用TOP7074K，为家用电器提供60W宽电压输入范围的隔离反激式电源；</li>
<li><a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.powerint.cn%2Fzh-hans%2Fder-1019%3Futm_source%3Dbusiness-wire%26utm_medium%3Dpr%26utm_campaign%3DPR-03-23-2026-GLOBAL-TOPSwitchGaN-Product-Launch%26utm_content%3Dacdc-design&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=DER-1019&index=8&md5=cb885e3f40f9b1d7a05be265587ad7c9">DER-1019</a> – 该方案为采用了TOP7078E的356W高电压（89V / 4A）隔离反激式工业电源；</li>
<li><a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.powerint.cn%2Fzh-hans%2Frdr-1018%3Futm_source%3Dbusiness-wire%26utm_medium%3Dpr%26utm_campaign%3DPR-03-23-2026-GLOBAL-TOPSwitchGaN-Product-Launch%26utm_content%3Dacdc-design&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=RDK-1018&index=9&md5=d481fd5b7c8b65c0a214b0ff2daea22b">RDK-1018</a> – 这款电动自行车充电器方案采用基于TOP7075E的168W宽范围隔离反激式设计。</li>
</ul>
<p>如需了解更多信息，请联系Power Integrations的销售代表或该公司全球授权分销商DigiKey、Newark、Mouser和RS Components，或访问power.com。<a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.digikey.com%2Fen%2Fsupplier-centers%2Fpower-integrations&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=DigiKey&index=10&md5=3b719cd1112fbb4a51a282007caa1ba8">DigiKey</a>、<a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.newark.com%2Fb%2Fpower-integrations&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=Newark&index=11&md5=1b0f38b11df9b716c018f0a4461145f8">Newark</a>、<a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.mouser.com%2Fmanufacturer%2Fpower-integrations%2F&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=Mouser&index=12&md5=7056ded07b57840d6f27a3ce328aa6ec">Mouser</a>和 <a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fuk.rs-online.com%2Fweb%2Fb%2Fpower-integrations%2F&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=RS+Components&index=13&md5=5bf18132446f186c50598a9d4ed61d78">RS Components</a>，或访问<a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.powerint.cn%2Fzh-hans%2F%3Futm_source%3Dbusiness-wire%26utm_medium%3Dpr%26utm_campaign%3DPR-03-23-2026-GLOBAL-TOPSwitchGaN-Product-Launch%26utm_content%3Dacdc&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=power.com&index=14&md5=1f9347fd00758b631f48c0a5023e7ac9">power.com</a>。</p>
<p>关于Power Integrations</p>
<p><a href="https://cts.businesswire.com/ct/CT?id=smartlink&url=https%3A%2F%2Fwww.powerint.cn%2Fzh-hans%2F%3Futm_source%3Dbusiness-wire%26utm_medium%3Dpr%26utm_campaign%3DPR-03-23-2026-GLOBAL-TOPSwitchGaN-Product-Launch%26utm_content%3Dacdc&esheet=54456961&newsitemid=20260323149332&lan=zh-CN&anchor=Power+Integrations%2C+Inc.&index=15&md5=a13798632b2521b6dbeb39e8ef73a6b5">Power Integrations, Inc.</a>是一家专注于半导体领域高压功率变换的技术创新型公司。该公司的产品是清洁能源生态系统内的关键组成部分，可实现新能源发电以及毫瓦级至兆瓦级应用中电能的有效传输和使用。</p>
<p>Power Integrations、Power Integrations徽标、PowiGaN、TOPSwitchGaN、TOPSwitch、TinySwitch和EcoSmart是Power Integrations, Inc.的商标、服务标志或注册商标。所有其他商标均为其各自所有者的财产。</p>
<p><br />
</p>
<p><img alt="全新TOPSwitchGaN™反激式IC系列将反激式转换器的功率范围扩展至440 W，远超以往需要采用更复杂的谐振和LLC拓扑结构的功率上限。" src="https://www.businesswirechina.com/files/news/54456961-1774334285-1.jpg" /></p>
<p>全新TOPSwitchGaN™反激式IC系列将反激式转换器的功率范围扩展至440 W，远超以往需要采用更复杂的谐振和LLC拓扑结构的功率上限。</p>